Janet A Gordon

US Patent:

58564225, Jan 5, 1999

Filed:

Oct 24, 1997

Appl. No.:

8/957549

Inventors:

Kwok Pong Chan - Troy NY
Kevin R. Stewart - Schenectady NY
Janet L. Gordon - Clifton Park NY

Assignee:

Molecular OptoElectronics Corporation - Watervliet NY

International Classification:

C08G 802
C08G 6400
C08G 6500

US Classification:

528125

Abstract:

Optically active poly(aryl)ether polymers prepared from monomers containing optically pure spirobiindane and/or indane moieties are disclosed. The chiral poly(aryl)ether polymers are of high molecular weight and exhibit high optical rotations. In addition, the polyethers are thermally stable at high temperatures and exhibit excellent hydrolytic resistance making them useful in high temperature processing applications, in the fabrication of optoelectronics devices, and as polarizing coatings and filters.

US Patent:

57031975, Dec 30, 1997

Filed:

Feb 13, 1997

Appl. No.:

8/798756

Inventors:

Janet L. Gordon - Clifton Park NY
David G. Gascoyne - Schenectady NY

Assignee:

Molecular OptoElectronics Corporation - Watervliet NY

International Classification:

C08G 6300

US Classification:

528201

Abstract:

Linear indane polycarbonate polymers, both homopolymers and copolymers derived from biphenols and bisphenols are disclosed. The indane polycarbonates have high glass transition temperatures and exhibit good mechanical properties, good thermal stability, and good ductility even at temperatures greater than 150. degree. C. making them useful for high temperature processing applications. In addition, the clear indane polycarbonate compositions exhibit good optical properties.

US Patent:

54986729, Mar 12, 1996

Filed:

Dec 7, 1994

Appl. No.:

8/352271

Inventors:

Dwain M. White - Schenectady NY
Janet L. Gordon - Clifton Park NY

Assignee:

General Electric Company - Schenectady NY

International Classification:

C08F27902

US Classification:

525314

Abstract:

Novel polymer compositions that comprise high 1,2-enrichment are described herein. Said polymer compositions have up to about 50% by weight of 1,2 units wherein about 25% to about 75% by weight of all 1,2 units are present in the polymer backbone. Additionally a novel process is disclosed for producing polymer compositions by dissolving a polydiene in a monomeric diene during emulsion polymerization conditions.

US Patent:

61749877, Jan 16, 2001

Filed:

Aug 29, 1997

Appl. No.:

8/920931

Inventors:

Janet L. Gordon - Clifton Park NY
Kevin R. Stewart - Schenectady NY

Assignee:

Molecular OptoElectronics Corporation - Watervliet NY

International Classification:

C08G 6400

US Classification:

528198

Abstract:

Linear polycarbonate polymers are disclosed which contain spirobiindanol derivatives regularly alternating in the polymeric chain with derivatives of dihydroxyaromatic compounds, such as biphenols and bisphenols. These clear spirobiindane-dihydroxyaromatic polycarbonates exhibit high glass transition temperatures and exhibit good mechanical and optical properties. In addition, the alternating polycarbonates are thermally stable and remain ductile even at temperatures greater than 150. degree. C. The polycarbonates are therefore useful in high temperature processing and optical applications. The disclosed polycarbonates exhibit indices of refraction that differ sufficiently from those of randomly distributed SBI/BPA polycarbonates to make them useful in the manufacture of optical waveguides.

US Patent:

62882066, Sep 11, 2001

Filed:

Nov 2, 1999

Appl. No.:

9/432312

Inventors:

Kevin R. Stewart - Schenectady NY
Janet L. Gordon - Clifton Park NY
Kwok Pong Chan - Troy NY
David G. Gascoyne - Schenectady NY
Feng Pan - Clifton Park NY

Assignee:

Molecular OptoElectronics Corporation - Watervliet NY

International Classification:

C08G 6400

US Classification:

528201

Abstract:

Chiral organic polymers doped with or appended by nonlinear optical dyes are disclosed. The use of chiral polymers produces a more stable noncentrosymmetric environment for the dye molecules resulting in unexpectedly long relaxation times as compared with previously used organic polymers. In addition, the NLO/chiral polymer materials exhibit high electro-optical coefficients (r. sub. 33), high nonlinear optical coefficients (d. sub. 33), improved long-term thermal stability, and at the same time retain the processing advantages associated with organic polymers. Thus, the present NLO/chiral polymer materials are extremely well-suited for use in second-order nonlinear optical and optoelectronics devices.

US Patent:

57770638, Jul 7, 1998

Filed:

Oct 24, 1997

Appl. No.:

8/957567

Inventors:

Janet L. Gordon - Clifton Park NY
Kevin R. Stewart - Schenectady NY
Kwok Pong Chan - Troy NY

Assignee:

Molecular OptoElectronics Corporation - Watervliet NY

International Classification:

C08G 1828

US Classification:

528 74

Abstract:

Optically active polycarbonate, polyester, and polyurethane polymers prepared from monomers containing optically pure indane moieties are disclosed. The chiral indane polymers are of high molecular weight and exhibit high optical rotations. In addition, the optically active polymers are useful in the fabrication of optoelectronics devices and as polarizing coatings or filters or as polarized lenses.

US Patent:

58832181, Mar 16, 1999

Filed:

Oct 24, 1997

Appl. No.:

8/957502

Inventors:

Janet L. Gordon - Clifton Park NY
Kevin R. Stewart - Schenectady NY
Kwok Pong Chan - Troy NY

Assignee:

Molecular OptoElectronics Corporation - Watervliet NY

International Classification:

C08G 6368

US Classification:

528202

Abstract:

Optically active polycarbonate, polyester, and polyurethane polymers prepared from monomers containing optically pure spirobiindane moieties are disclosed. The chiral spirobiindane polymers are of high molecular weight and exhibit high optical rotations. In addition, the optically active polymers are useful in the fabrication of optoelectronics devices and as polarizing coatings or filters or as polarized lenses.

US Patent:

60937858, Jul 25, 2000

Filed:

Jan 25, 1999

Appl. No.:

9/236717

Inventors:

Janet L. Gordon - Clifton Park NY
David G. Gascoyne - Schenectady NY

Assignee:

Molecular OptoElectronics Corporation - Watervliet NY

International Classification:

C08G 6402

US Classification:

528196

Abstract:

Linear indane polycarbonate polymers, both homopolymers and copolymers derived from biphenols and bisphenols are disclosed. The indane polycarbonates have high glass transition temperatures and exhibit good mechanical properties, good thermal stability, and good ductility even at temperatures greater than 15. degree. C. making them useful for high temperature processing applications. In addition, the clear indane polycarbonate compositions exhibit good optical properties.